John allen



glatten tats atnt @fitta JOHhN ALLEN, OFv NEW YORK, N. Y.

Letters .Patent No. 73,278, datefZvJanumg/ 14, 1868; antclated January4, 1868.

IMPROVEMENT IN LAMPS.

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Be it known4 that I, JOHN ALLEN, of the city, county, and. State of NewYork, have invented a new and useful Improvement in ConstructingKerosene andCoal-Oil Lamps; and I do herebyideclare that the followingis a full, clear, and exact description ofthe construction and operationof the same, referencebeing had to the annexed drawing, making apart ofthis specification,l in which Figure 1 is -a vertical section.

Figure 2, a sectional view of the inverted conical holder of water orother non-conducting substance surrounding the wick-tube, and whichseparates the oil or burning-material in the outer compartment of thelamp from the wick-tube; and

Figure 3 represents a lamp-reservoir surrounded and covered by awater-jacket, or compartment to hold a non-conducting substance, D beingthe oil-reservoir, and C the water-jacket, or compartment for thenonco'nductcr of heat.

A is any ordinary burner. B is the wick-tube. C is thc inverted conicalholder oi non-conducting substance surrounding the wick-tube. D is thecompartment for holding the oil or burning-material, connecting with thewick-tube B by perforations of any kind at a a, and surrounding thenon-conductor C. E is the loaded foot or stand of the lamp. Fis a cappedtube, used for lling'the compartment for holding the non-conductingsubstance. Gr is a similar tube, used for filling the compartment' Dwith oil or burning-material, the cap being perforated to admit air intothe compartment, to force the oil or burning-material through theapertures a a, and up the wick-tnbe B. b b are an impervious joint, madein connecting g. 1 with fig. 2, to complete and perfect the lamp. Thewhole lamp is made of metal, in' preference, 'and is eitherelectro-plated, galvanized, polished, bronzed, painted, lacquered, orotherwise ornamented. The foot or base of the lamp, E, is filled withsand or other substance to ballast it.

The object of thc compartment C, filled with non-conductors, is toprevent excessive vaporization of the burning-material, and preventexplosion. The use of non-conductors of heat is not confined t'o anyparticular form of lamp, and may'consist of liquid, fluid, or s olidnon-conducting substances. The burning-material may surround thenon-conductoigand this latter surround the wick-tube, as shown in igs. 1and 2, and above described, or the burning-material may be whollysurrounded and covered by a non-conductor, as shownin fig.

3, and before described. The oil oigburning-matcrial compartment is madeto conform to the shape given to the v lamp, and may be varied toaccommodate any particular shape. Thewick-tube B and thenon-conductingmaterial compartment C are connected together, the tubeextending any desirable length below the compartment C into the lamp,the connection being at 6 IJ. The length of the tube B and the lengthand diameter of the non-conducting-material compartment C are varied indifferentshapedlamps, and some are made with and some without handles.

The advantages ot' the above-named improvements are.: first, no odo1arises from the burning-material; second, one-third more light isproduced; third, one-third lessrcil is consumed than in ordinary lamps;and, fourth, that there is no danger of explosions, here being no meansby which vapor accumulating in the wicktube (should there be any) canescape through the orifices a a into the oilor burning-materialcompartment D so long as there is any oil in the lamp, because thewick-tube descends to the bottom of the oil-reservoir, and the wick isfed only from the bottom of the tube.

What I claim as my invention, and desire to secure by Letters Patent, is

The combination of the conical holder of the non-conducting-materialcompartment C with wick-tube D, when constructed as herein described,and for the purposes set forth. i

JOHN ALLEN.

Witnesses Crus. SEARS, C. L. WEsTBnooK.

